Saw-sharpener.



W. F. BROWN. SAW SHARPENEH. APPLYICATIDN FILED OCT. n. 1912.

Patented July 6, 1915.

WILLIAM F. BROWN, OF WOMBLE, ARKANSAS.

'SAW-SI-IARPENER. 7

Application filed October 11, 1912. Serial No. 725,265.

To all whom it may concern Be it known that I, WILLIAM F. BROWN, acitizen of the United States, residing at Womble, in the county ofMontgomery and State of Arkansas, have invented new and usefulImprovements in Saw-Sharpeners, of which the following is aspecification.

The present invention relates to a saw sharpener or gummer, and residesin the novel construction, combination and operative arrangement ofparts set forthin the following description, and falling within thescope of the appended claim.

In the drawings which accompany this specification, andwhich form a partthereof there has been illustrated a satisfactory reduction of thedevice to practice, but it is to be understood that the showing thereinis merely illustrative, and that the device is susceptible to suchchanges in material, size, proportion and details of construction aswill fall within the scope of the appended claim. 1

In the said drawings, Figure l is a perspective view of a deviceconstructed in accordance with the present invention. Fig. 2 is acentral longitudinal sectional View through the same and the mandrelturned at right angle to the stand from its position shown in Fig. 1.Fig. 3 is a transverse sectional view taken approximately upon the lineXX of Fig. 1.

My device is adapted to be erected upon the filing bench where the sawis finished, and the frame thereof is preferably constructed of pipesections and connections, whereby the same may be taken down, and packedfor storage or transportation at a minimum amount of time and labor, andalso whereby the same may be easily set up when desired.

Furthermore it is my purpose to construct a machine whereby varioussizes of saws may be gummed, and whereby any desired pitch or bevel willbe imparted to the teeth of the saw so that saws for various purposes,such as saws for out ofl's rip saws or edger saws may be readilysharpened and gummed.

In the device illustrated by the drawings, the numeral 1 designates afiling bench, and 2 the frame of my improvement which is mounted uponthe bench. This frame is preferably constructed of a plurality of pipesections or rods, and comprises side members 3 and 4, each of the samebeing of a similar construction, and each embodying Specification ofLetters Patent.

Patented July e, 1915.

a pair of spaced uprights, 5 having their lower extremities and theirupper extremities provided with removable couplings 7.

The. numerals 8 designate the connecting members for the up-rights whichare removably secured to the couplings. The con necting members 8 arecentrally provided with in-turned bearings 9, that includes a detachablebushing 9 which can be renewed when worn out, for the reception of ashaft 10. The bearing members 8 have also connected therewith asubstantially rectangular frame 11, the same being preferably constructed of pipe members and couplings therefor, and the said frame ispivotally secured to the bearings 9. The frame 11 is provided with arearwardly extending member or arm 12 upon which is arranged a weight13. The weight 13 is slidable upon the arm 12, and is sustained in anadjusted position upon the said arm through the medium of a thumb screw14. The f0rward end of the frame 11 has connected thereto asubstantially U-shaped member 15, the said member being also preferablyformed of pipe sections, and couplings for the sections. Thelongitudinal arms of the Ushaped member 15 have their extremitiesprovided with couplings forming bearing 16, and arranged for rotationwithin the said bearings is a second shaft 17. The shaft extends asuitable distance through the oppositely arranged bearing 16 and has oneof its ends provided with a fly wheel 18, while the opposite projectingend has secured thereto a saw filing and gumming member which is in thenature of an emery wheel 19. Secured upon the shaft 17 between thelongitudinal arms of the Ushaped member 15 is a belt wheel 20, the saidwheel being arranged forward of a similar belt wheel 21 which isconnected with the shaft 10, while the numeral 22 designates an end lessbelt for the said wheels. The shaft 10, which may be termed the powershaft of the device, is further provided with a second belt wheel 23,and the numeral 24 designates the belt which acts upon the said wheel 23and which in turn is connected with any suitable source of power (notshown). Secured to the couplings forming the bearing 16 are the arms ofa substantially U-shaped handle 25, the same being disposed convenientlyto the operator, so that the pivoted frame, and emery wheel may bebrought to offset to provide feet 6,

a desired angle to permit of the emery wheel properly acting upon theteeth of the saw.

Arranged upon the upright 5 of the frame adjacent the wheel 19 is acollar 26, the said collar being sustained in an adjusted'positionuponthe said upright through the medium of a binding screw 27 The numeral 28designates a member or arm which is secured to the collar 26, and thesaid arm has its outer extremity enlarged. The enlarged portion of thearm is provided with a vertically arranged threadedopening which isadapted for the receptionof a threaded member 29, and the said member 29may be, and preferably is sustained against rotation through the mediumof a binding screw 80. The upper extremity'of the member. 29 hasconnected thereto a saw mandrel 31. This mandrel 31 is preferablyrotatably secured upon the screw 29, but is also normally sustainedagainst rotation through the medium of a binding element, in the form ofa bolt 32 which passes through a suitable threaded opening in themandrel and which contacts with the upper extremity of the threadedmember 29. The mandrel has its outer face provided with a cam lever 33whereby a saw 34: is clamped upon the mandrel after the said saw has itscentral opening passed over the cam lever and upon the mandrel.

From the above description taken in connection with the accompanyingdrawings it will be noted that the mandrel may be adjusted vertically ofthe frame 2 to sustain the saw in a proper position to be operated uponby the filing wheel 19; that the saw may be inclined to permit of thewheel 19 imparting a desired bevel to the teeth; that =the threadedmember 29 affords a minute adjustment of the saw and mandrel, after thearm 28 has been adjusted and sustained upon the upright of the frame 2;also that the wheel 19 is removable so that other sharpening wheels ofvarying thicknesses and diameters may be arranged upon the shaft 17, andfrom the above it is thought that the advantages and operation of theCopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. 0.

